You must submit a completed contractor application packet, along with the required fees (listed in the application). There is no recent common law in Utah on the classification of inde- pendent contractors.State and Municipal Projects in Utah. 1. Utah requires aspiring contractors to complete specific prelicensure courses and examinations. Utah law requires that some types of agreements must be in writing. A Utah independent contractor agreement is a document outlining the relationship between a contractor and a client. Retainage laws in Utah. Withholding retainage is a highly contentious practice in the construction industry. Most People Working in Construction Trades Need a License. The Utah Division of Occupational and Professional Licensing (DOPL) mandates completing 4,000 hours (or 2 years) of supervised on-the-job paid experience.